Preparation and characterization of yBiGaO(3)-(1-x-y)BiScO(3)-xPbTiO(3) piezoelectric ceramics

IEEE Trans Ultrason Ferroelectr Freq Control. 2007 Dec;54(12):2505-9. doi: 10.1109/TUFFC.2007.568.

Abstract

The ternary system of yBiGaO(3)-(1-x-y)BiScO(3)-xPbTiO(3) (BGS-PT) ceramics was prepared by using conventional mixing oxide processing. X-ray diffraction analysis revealed that the BGS-PT ceramics showed the perovskite structure. The Curie temperature (TC) of BGSPT ceramics was found to increase with increasing BiGaO3 content. However, a larger BiGaO3 content led to sharply decreased piezoelectric properties, and the secondary phase was formed in the BGS-PT system. BGS-PT ceramics with x = 0.56, y = 0.19 showed a high Curie temperature T(C) and a large piezoelectric constant d(33) of 501??C and 152 pC/N, respectively. The high T(C) of BGS-PT ceramics with usable piezoelectric properties suggests future high-temperature applications.

Publication types

  • Evaluation Study
  • Research Support, Non-U.S. Gov't

MeSH terms

  • Acoustics / instrumentation*
  • Ceramics / chemistry*
  • Crystallization / methods*
  • Electric Impedance
  • Electrochemistry / instrumentation
  • Electrochemistry / methods
  • Equipment Design
  • Equipment Failure Analysis
  • Lead / chemistry*
  • Materials Testing
  • Reproducibility of Results
  • Sensitivity and Specificity
  • Temperature
  • Titanium / chemistry*
  • Transducers*

Substances

  • lead titanate
  • Lead
  • Titanium